x^2- 11 = 70 I need help on how to solve this

Answer:

[tex]-\frac{11}{6} , \frac{5}{6}[/tex]

The equation has two solutions.

Answer:

positive

Step-by-step explanation:

A negative times a negative is a positive

Answer:

function

Step-by-step explanation:

i have a hunch that is function i need one more brainleist pls

Answer:

x=-5

Step-by-step explanation:

The x-intercept is x=-5

Answer:-5

Step-by-step explanation:If you draw out the graph, it would be a vertical line at the point -5. Since you are asking for the x intercept, it would be -5

Answer:

1.60

Step-by-step explanation:

21.60-20.00= 1.60

Answer:

He deposited $100

Step-by-step explanation:

67 + 33 = 100

Hope this helps! Please mark brainliest!

Answer:

(-6,-6) I think that A is correct

Answer:

Step-by-step explanation:

The equation for the line in slope-intercept form will be y = 10x + 20.

Given is that Marissa's dance studio charges a monthly fee, plus a fixed amount per class.

Assume that the equation of the line in the slope - intercept form as -

y = mx + c

At [x] = 0, [y] = 20.

So, the [y] intercept will be -

[c] = 20.

and slope of the line will be -

m = (40 - 30)/(2 - 1)

m = 10/1

m = 10

So the equation will be -

y = 10x + 20

Therefore, the equation for the line in slope-intercept form will be y = 10x + 20.

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Answer: C equals 2.

Step-by-step explanation:

37 + (-2c - 3) = 4c + 20 +c (distribute)

34 - 2c = 5c +20 (combine like terms)

14 = 7c (divide)

c = 2

Answer:

• $19.26

Step-by-step explanation:

Answer:

19.26

Step-by-step explanation:

Explanation

7% = 7/100 = 0.07

1 in formula before represents the 18 dollars.

Formula

18*(1 +  7/100)

18 (1 + 0.07)

18(1.07)

19.26

She will have to pay 19.26 dollars.

Answer:

What is the question?

Step-by-step explanation:

I'll see if I ca help

Answer:

yeha i would be happy to help but wheres the qoution i will wdit my answer and give you answer of your quotion

Answer: x2+3x−4

Step-by-step explanation: there is no like terms

Answer:

5x-4: x2+3x-4

2x+3x-4

5x-4

Graph 1 shown in the figure 1 is the scatter plot that shows a nonlinear association for the data.

When the relationship of the scatter plot does not resemble a straight line then that scatter plot is called a Non-linear scatter plot.

In figure 1, the scatter plot of graph 2, graph 3 and graph 4 can resemble a straight line but the graph 1 does not resemble a straight line.

As the slope of that graph also changes.

So, graph 1 is the scatter plot that shows a nonlinear association for the data.

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the simplified form of (3x²y³/z³)³ is 27 * x⁶ * y⁹ / z⁹. the correct option is A

To simplify the expression (3x²y³/z³)³, we need to apply the power of a power rule. In this rule, we raise each term inside the parentheses to the power outside the parentheses.

So, let's simplify step by step:

(3x²y³/z³)³ = 3³ * (x²)³ * (y³)³ / (z³)³

Simplifying further:

3³ = 27

(x²)³ = x²⁽³⁾ = x⁶

(y³)³ = y³⁽³⁾ = y⁹

(z³)³ = z³⁽³⁾ = z⁹

Combining all the simplified terms, we have:

27 * x⁶ * y⁹ / z⁹

Therefore, the simplified form of (3x²y³/z³)³ is 27 * x⁶ * y⁹ / z⁹. the correct option is A. This expression represents the original expression after raising each term inside the parentheses to the power of 3 and combining them into a single term.

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Answer:

The solution of the system of equations will be:

[tex]y=-12,\:x=-3[/tex]

Step-by-step explanation:

Given the system of equations:

[tex]\begin{bmatrix}y-2x=-6\\ y-4x=0\end{bmatrix}[/tex]

Isolate [tex]y[/tex] for [tex]y-2x=-6[/tex], [tex]y=-6+2x[/tex]

[tex]\mathrm{Subsititute\:}y=-6+2x[/tex]

[tex]\begin{bmatrix}-6+2x-4x=0\end{bmatrix}[/tex]

[tex]\begin{bmatrix}-6-2x=0\end{bmatrix}[/tex]

Isolate x for [tex]-6-2x=0[/tex], [tex]x=-3[/tex]

[tex]\mathrm{For\:}y=-6+2x[/tex]

[tex]\mathrm{Subsititute\:}x=-3[/tex]

[tex]y=-6+2\left(-3\right)[/tex]

[tex]y=-12[/tex]

Therefore, the solution of the system of equations will be:

[tex]y=-12,\:x=-3[/tex]

Step-by-step explanation:

a)P( a customer has to wait more than 4 minutes )=P(X>4)=e-4/2.5 =0.202

b)probability that a customer is served within the first minute =P(X<1)=1-e-1/2.5 =0.3297

c) here 99th percentile corresponding value =-2.5*ln(1-0.99)=11.51 minutes ~ 12minutes

Answer:

a) 0.2018

b)0.329

c)x=5

Step-by-step explanation:

We are given that This process can be described using an exponential probability density function with a mean of 2.5.

So, [tex]\lambda = 2.5[/tex]

[tex]f(x)=\frac{1}{\lambda}e^{-\frac{1}{\lambda} x}[/tex]

Where x>0 , [tex]\lambda[/tex] > 0

a) Find the probability that a customer has to wait more than 4 minutes.

[tex]P(X>4)=\frac{1}{\lambda} \int\limits^{\infty} _{4} {e^{\frac{-1}{\lambda} x} \, dx[/tex]

[tex]P(X>4)=1-(1-e^{\frac{-4}{\lambda}})\\P(X>4)=e^{\frac{-4}{2.5}}\\P(X>4)=0.2018[/tex]

b)Find the probability that a customer is served within the first minute.

[tex]P(0<x<1)=1-e^{\frac{-1}{2.5}}=0.329[/tex]

c)The manager wants to advertise that anybody who isn't served within a certain number of minutes gets a free hamburger. But she doesn't want to give away free hamburgers to more than 1% of her customers. What number of minutes should the advertisement use?

[tex]P(X>x) \leq 0.01\\e^{\frac{-x}{2.5}} \leq 0.01\\\frac{-x}{2.5} \leq log (0.01)\\x=-2.5 \times log (0.01)\\x=5[/tex]

Complete Question

A sample of 1200 computer chips revealed that 53% of the chips do not fail in the first 1000 hours of their use. The company's promotional literature claimed that more than 50% do not fail in the first 1000 hours of their use. Is there sufficient evidence at the 0.10 level to support the company's claim

Answer:

The decision rule is  

    Reject the null hypothesis

The  conclusion is  

   There is sufficient evidence to conclude that  the company's promotional literature claimed that more than 50% do not fail in the first 1000 hours of their use is correct

Step-by-step explanation:

From the question we told that

   The sample size is  n =  1200

   The significance level is  [tex]\alpha = 0.100[/tex]

   The sample proportion is  [tex]\^ p = 0.53[/tex]

    The null hypothesis  [tex]H_o : p = 0.50[/tex]

     The alternative hypothesis is  [tex]Ha : p > 0.50[/tex]

Generally the test statistics is mathematically represented as

        [tex]z = \frac{\^ p - p }{ \sqrt{\frac{p(1 - p )}{n} } }[/tex]

=>      [tex]z = \frac{ 0.53 - 0.5 }{ \sqrt{\frac{0.50 (1 - 0.50)}{1200} } }[/tex]  

=>      [tex]z = 2.078[/tex]

From the z table  the area under the normal curve to the right corresponding to  2.078  is  

      [tex]P(Z > 2.078 ) = 0.018855[/tex]

So

     [tex]p-value = 0.018855[/tex]

Generally the value obtained we see that  [tex]p-value < \alpha[/tex]  , Hence  

The decision rule is  

    Reject the null hypothesis

The  conclusion is  

   There is sufficient evidence to conclude that  the company's promotional literature claimed that more than 50% do not fail in the first 1000 hours of their use is correct

Answer:

100 wizards in magic club

Step-by-step explanation:

20% of 120 is 20 so

120-20=100

Answer:

x+2

Step-by-step explanation:

Use any letter for a variable. X is the most common.

let's say x is Jameson. To show he got 5 more, add x by 5

x+5

Hope this helps

Answer:

2+n=?

Step-by-step explanation:

Because we do not know the amount Jared gave him and we do not know the total amount either.

Answer:

x = 8

Step-by-step explanation:

-10x+6=-74

-10x=-74-6

-10x=-80

x=-80/-10

x=8

Answer:

The answer is x=8

Step-by-step explanation:

If you need me to explain let me know

Answer:

9 or more

Step-by-step explanation:

Answer:

3) Trapezoid

It has 4 sides and 2 of the sides are parallel

Answer:

A rhombus

Step-by-step explanation:

The definition of parallel lines is two or more lines that never intersect, are on the same plane, and are the same distance apart no matter what point you measure from.  The sides of a rhombus are parallel and the top and bottom of the shape are parallel to each other.

Answer: whole number is 5 and remainder is 2

Step-by-step explanation:

six goes into 32 5 times to get 30

32-30=2

Answer:

Explained below.

Step-by-step explanation:

According to the Central limit theorem, if from an unknown population large samples of sizes n > 30, are selected and the sample proportion for each sample is computed then the sampling distribution of sample proportion follows a Normal distribution.

The mean of this sampling distribution of sample proportion is:

[tex]\mu_{\hat p}=p[/tex]

The standard deviation of this sampling distribution of sample proportion is:

[tex]\sigma_{\hat p}=\sqrt{\frac{p(1-p)}{n}}[/tex]

A random sample of n = 658 items is sampled randomly from this population.

As the sample size is large, i.e. n = 658 > 30, the Central limit theorem can be applied to approximate the sampling distribution of sample proportion by a Normal distribution.

Compute the mean and standard deviation as follows:

[tex]\mu_{\hat p}=0.61\\\\\sigma_{\hat p}=\sqrt{\frac{0.61(1-0.61)}{658}}=0.019[/tex]

(a)

Compute the probability that the sample proportion is greater than 0.63 as follows:

[tex]P(\hat p>0.63)=P(\frac{\hat p-\mu_{\hat p}}{\sigma_{\hat p}}>\frac{0.63-0.61}{0.019})\\\\=P(Z>1.05)\\\\=1-P(Z<1.05)\\\\=1-0.85314\\\\=0.14686\\\\\approx 0.1469[/tex]

(b)

Compute the probability that the sample proportion is between 0.60 and 0.66 as follows:

[tex]P(0.60<\hat p<0.66)=P(\frac{0.60-0.61}{0.019}<\frac{\hat p-\mu_{\hat p}}{\sigma_{\hat p}}<\frac{0.66-0.61}{0.019})\\\\=P(-0.53<Z<2.63)\\\\=P(Z<2.63)-P(Z<-0.53)\\\\=0.99573-0.29806\\\\=0.69767\\\\\approx 0.6977[/tex]

(c)

Compute the probability that the sample proportion is greater than 0.592 as follows:

[tex]P(\hat p>0.592)=P(\frac{\hat p-\mu_{\hat p}}{\sigma_{\hat p}}>\frac{0.592-0.61}{0.019})\\\\=P(Z>-0.95)\\\\=P(Z<0.95)\\\\=0.82894\\\\\approx 0.8289[/tex]

(d)

Compute the probability that the sample proportion is between 0.57 and 0.60 as follows:

[tex]P(0.57<\hat p<0.60)=P(\frac{0.57-0.61}{0.019}<\frac{\hat p-\mu_{\hat p}}{\sigma_{\hat p}}<\frac{0.60-0.61}{0.019})\\\\=P(-2.11<Z<-0.53)\\\\=P(Z<-0.53)-P(Z<-2.11)\\\\=0.29806-0.01743\\\\=0.28063\\\\\approx 0.2806[/tex]

(e)

Compute the probability that the sample proportion is less than 0.51 as follows:

[tex]P(\hat p<0.51)=P(\frac{\hat p-\mu_{\hat p}}{\sigma_{\hat p}}<\frac{0.51-0.61}{0.019})\\\\=P(Z<-5.26)\\\\=0[/tex]

Answer:

The answer is

[tex] \huge \frac{1}{9} \\ [/tex]

Step-by-step explanation:

The slope of a line given two points can be found by using the formula

[tex]m = \frac{ y_2 - y _ 1}{x_ 2 - x_ 1} \\[/tex]

From the question we have

[tex]m = \frac{3 - 2}{1 - - 8} = \frac{1}{1 + 8} = \frac{1}{9} \\ [/tex]

We have the final answer as

[tex] \frac{1}{9} \\ [/tex]

Hope this helps you

Answer:

Step-by-step explanation:

U right it’s not any of them and if u single I’m here

Answer:

B.

Step-by-step explanation:

AD, the entire segment, is composed of the three segments AB, BC, and CD. In other words:

[tex]AD=AB+BC+CD[/tex]

Since AB=CD, we can substitute:

[tex]AD=CD+BC+CD\\ AD=2CD+BC[/tex]

We know that CD is 9 and BC is 5x. AD is 53. So, substitute:

[tex]53=2(9)+5x[/tex]

Solve for x:

[tex]\begin{aligned} 53&=18+5x \\ 35&=5x \\ 7&=x \end{aligned}[/tex]

The value of x is 7.

Hence, our answer is B.